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access icon free Space-time coding with receive combiner bank for multiple-input–multiple-output  system under multi-user cochannel interference

© The Institution of Engineering and Technology
Received 31/05/2012, Accepted 16/10/2012, Revised 14/10/2012, Published

Space-time coding with receive combiner bank (STC-RCB), in which a bank of receive combiners is added before the space-time decoder for interference-plus-noise suppression, is proposed. Without loss of generality, the author consider space-time block code (STBC) to be the representative of STC and study the performance for (STBC-RCB). The author derive the output signal to interference-plus-noise ratio (SINR) (of the space-time decoder) for STBC-RCB under multi-user cochannel interference. By regarding STBC as a special case of STBC-RCB, the author also derive the output SINR for STBC under multi-user cochannel interference. Simulation results show that the output SINR of STBC-RCB can be much larger than that of STBC, also, they show that STBC-RCB can adopt the appropriate receive combining strategy in the RCB to further improve the performance.

Inspec keywords: MIMO communication; interference suppression; cochannel interference; space-time block codes

Other keywords: signal to interference-plus-noise ratio; multiuser cochannel interference; STBC; multiple-input-multiple-output system; space-time decoder; interference-plus-noise suppression; receive combiner bank; SINR; STC-RCB

Subjects: Radio links and equipment; Codes; Electromagnetic compatibility and interference

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